Combined latch and knob



' (No Model.)

4O. 8: G. SPENGLER. COMBINED LATCH AND KNOB.

N0. 527,627. Patented Oct. 16,1894.

ZZ IV/ UNITED. STATES PATENT OFFICE.

CHARLES SPENGLER AND GEORGE SPENGLER, OF ROCKFORD, ILLINOIS.

COMBINED LATCH AND KNOB.

SPECIFICATION forming part of Letters Patent N 0. 527,627, dated October16, 1894.

Application filed June 14, 1894. Serial No. 614,573. (No model.)

To all whom it may concern:

Be it known that we, CHARLES SPENGLER and GEORGE SPENGLER, citizens ofthe United States, residing at Rockford, in the county of Winnebago andState of Illinois, have invented a new and useful Combined (latch andKnob, of which the following is a specification.

Ourinvention relates to a spring catch for use in connection withshow-cases, drawers, doors, and other closures, the object in view beingto provide a device capable of automatic engagement, and adapted to bedisen gaged by a manipulation of a knob or a part of a knob used inconnection with and forming a part of the catch, and with this object inView the invention consists in a certain novel construction, combinationand arrangement of parts which will be more fully described hereinafter,and the novel features of which will be particularly pointed out in theappended claims.

In the drawings:-Figure 1 is a perspective view of a catch embodying ourinvention. Fig. 2 is a central section of the same. Fig. 3 is atransverse section on the line 33 of Fig. 2. Fig. 4 is a detail view inperspective of the latch and attachments including the rotatable cap,the latter being detached from the latch. Fig. 5 is a view of a slightlymodified form of the catch adapted for use in connection with drawers.

Similar numerals of reference indicate corresponding parts in all thefigures of the drawlugs.

1 designates a casing forming a part of a securing-plate 2 havingperforations 3, through which may be passed suitable screws for securingthe plate to the object in connection with which the improved catch isused, and within this casing is secured a bracket 4, preferably providedwith a guide 5 having parallel plates 6. Between these guide-plates .isarranged a latch 7, which is mounted upon a transverse pivot-pin S, andthis latch is provided with an upper arm 9 having a stud 10 which isarranged opposite a similar stud 11 at the upper end of the saidbracket, a coiled spring 12 being engaged at its terminals with thesestuds in order to hold the latch normally in its locking position. Theupper arm of the latch is further provided with a lateral projection 13having a terminal perforation 14:,with which is engaged a depending pin15 on the rotatable cap 16, said cap being mounted upon and closing theupper or outer side of the casing, and with said casing forming theknob.

It will be seen that when the cap is turned its motion is communicatedby means of the depending pin to the projection on the upper arm ofthelatch, whereby said latch is moved in opposition to the tension ofthe actuating spring. A suitable shouldered hasp 17 is used inconnection with the above described latch, said latch being providedwith a shouldered bolt-head 18, as shown in Figs. 1 to 4:, or beingconnected to a bolt 19, as shown in Fig. 5 when the device is to be usedin connection with a drawer or other construction. In said modifiedconstruction the bolt 19 is mounted for sliding by means of aguide-screw 20 and an engaging slot 21, aloose connection 22 beingprovided between the latch and the bolt.

The advantage of the above description resides in the fact that thelatch may be disengaged by a rotary movement of the hand which graspsthe knob to open the door, drawer, or other closure, thus obviating thenecessity of using both hands for the purpose.

It will be understood, furthermore, that in practice various changes inthe form, proportion, and the minor details of construction may beresorted to without departing from the spirit of the invention orsacrificing any of the advantages thereof.

Having described our invention, what we claim is 1. In a device of theclass described, the combination of a knob comprising a hollow casing,and a rotatable cap fitted thereon, a latch arranged at one end withinthe casing, and connections between the latch and the rotatable cap,substantially as specified.

2. In a device of the class described, the combination of a knob havinga hollow casing, and a cap rotatably mounted thereon, a pivotal latcharranged at one end of the easing, a spring for normally holding thelatch in its operative position, and connections between the latch andthe rotatable cap, substantially as specified.

3. In a device of the class described, the combination of a knob havinga hollow casing, and a cap rotatably mounted thereon, a

pivotal latch arranged at one end within the casing, a spring forholding the latch in its operative position, and a pin carried by thecap and engaging a projection on the latch 5 whereby motion iscommunicated from the cap to the latch, substantially as specified.

4. In a device of the class described, the combination of a knob havinga hollow casing, and a cap rotatably mounted thereon, a

pivotal latch arranged at one end in the easing and provided with aterminal projection having a perforation, and a pin carried by the capand engaging said perforation, substantially as specified.

: 5 5. In a device of the class described, the

combination of a knob having a hollow casing, and a cap rotatablymounted thereon, a bracket arranged within the casing and provided witha stud, of a latch pivotally connected to the bracket and provided witha corresponding stud, a coiled spring engaged terminally with saidstuds, and connections between the rotatable cap and the latch,substantially as specified.

6. In a device of the class described, the combination of a knob havinga hollow casing, and a cap rotatably fitted thereon, a bracket arrangedwithin the casing and having parallel guide-plates, a latch pivotallyarranged between said guide-plates, an actu- 3o ating spring interposedbetween the bracket and the inner arm of the latch, and connectionsbetween the rotatable cap and thelatch, substantially as specified.

In testimony that we claim the foregoing as our own we have heretoaflixed our signatures in the presence of two Witnesses.

CHARLES SPENGLER. GEORGE SPENGLER. Witnesses:

NELs THORSLEGE, ALFRED Mosnn.

